What this validator checks for Slovakia
- Slovak VAT IDs with the mod-11 check
- Electronic address scheme 9950 (SK VAT)
- Peppol BIS 3.0 identifiers and buyer reference
- VAT at 23%, 19% and 5% per category
- EN 16931 line and total calculations
No phase-in
Unlike Germany or France, Slovakia does not phase the obligation by company size. All VAT payers issue e-invoices and business recipients must receive them from the start date.